23, Photographic Survey Corporation, Automation in Stereo
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24. Preston, E. S., Ohio Mechanizes Highway Design, Engineering
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25, Preston, E. S., Coordination of Plotting Instruments and
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27. Quinn, A. O., Photogrammetry for the Highway Engineer, Civil
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28. Southard, R.B., Orthophotography--Its Techniques and
Application, Photogrammetric Engineering, June 1953,
29. zarzycki, J. M., Photogrammetry in Highways and Railways
Engineering, Engineering Journal, March 1959,
18